Johnathan Nightingale, the man with the clever Mozilla title of "Human Shield," has a great post over at his blog, meandering wildly, that really makes concrete what kinds of dangers have come to the web and what we're doing to help keep Firefox users safe with the malware protection in Firefox 3. Go read it.
this is disconcerting, security-wise:
http://forums.mozillazine.org/viewtopic.php?t=656581